Der Schmerz
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Review Meta Analysis
[Placebo responders in randomized controlled drug trials of fibromyalgia syndrome : Systematic review and meta-analysis].
The superiority of true drug treatment over placebo in reducing symptoms of fibromyalgia syndrome (FMS) is small. Drug placebo treatment of functional somatic syndromes (FSS) such as FMS has been discussed. We determined the magnitude of placebo responders in drug trials with FMS patients to substantiate further research on placebo treatment of FSS. ⋯ The magnitude of responders to placebo in drug trials of FMS is substantial. The efficacy, safety, and costs of drugs recommended for FMS therapy and open-label placebo should be compared in large multinational trials sponsored by public institutions. The English full-text version of this article is available at SpringerLink (under "Supplemental").